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Vapor lock is caused when the fuel inside the fuel line of a carburated engine boils. In the absence of oxygen, the fuel will boil and the pressure of the vaporized fuel will push against the rest of the fuel, back toward the gas tank.
It isn't a dangerous condition, it just keeps the engine from running. Once the fuel pump is trying to pump air, there will be no fuel pumped into the carburater.
That is the definition of true vapor lock, and if that's what you have you need to insulate the fuel line from the heat of the exhaust line.
The reality of it is, there was very little true vapor lock in any vehicle manufactured in the last half of the 1900's. usually there was a problem with the fuel pump. A pinhole in the diaphragm of the fuel pump would allow air in and the pump wouldn't be able to pull gasoline in.
There are two options:
1. Replace the fuel pump.
2. Bypass the fuel pump and install an electric fuel pump.
What else can I help you with?
Where is the fuel pump in a 1985 351 ford bronco?
Fuel injected? In the fuel tank Carb.? At the front lower section of the engine - follow fuel line
88 ford bronco II wont start and had all electrcal tested and fuel pump on frame running but fuel pump in tank makes a gergaling sound and you have fuel in tank?
The fuel pump on the frame is not strong enough to pull fuel directly from the tank. Ford and their wonderful two pump system. You'll need to replace the pump in the tank.
84 ford bronco 2 wont start. Sat for a week and now it is not getting fuel. when you pour gas in the carburetor it will start. It has gas in the tank i made sure of that.?
It sounds like your fuel pump is bad. try taking the fuel line loose from the carb and turning it over. If no fuel comes out, replace the filter and try again. Still no fuel, replace the pump. You've got to get fuel to the carb.
Where is ORVR valve?
The ORVR valve in a Toyota Camry is an on-board refueling vapor recovery valve. This valve is located in the upper portion of the fuel tank.
Why does your go kart stop running when it gets hot?
replace the radiator. There are a lots of cause why a car stop and running hot. First, your car might have damage head gasket. Second, it might have a worned thermostat and you might need to replace the water pump.
Did Anyone have a problem with vapor locks?
I just figured out my Bronco 2 is vapor locking. Going to insulate the fuel lines tomorrow.
Is there a fuse relay for 1978 ford bronco fuel pump?
No, it is a manual fuel pump mounted on the engine block.
How many fuel pumps does a 1978 bronco 400 have?
One, mounted on the engine block.
Where can you find a fuel vapor hose diagram for a 1987 bronco?
try national parts depot or lmc truck.
Where is the fuel pump located on a 1992 ford bronco?
On a 1992 Ford Bronco : The electric fuel pump is INSIDE the fuel tank
What is fuel vapor line?
fuel vapor line is common in the car fuel line
How do you replace the fuel pump in a 1993 Ford Bronco?
how do I replace a fuel pump on a 1993 Ford Bronco 302 5.0 L
What is the correct psi for a ford 1987 Bronco fuel injection system?
96 EB Bronco 5.8L EFI what is the standard fuel pressure
What number is the fuel pump relay on a 1995 Ford Bronco?
If it is the same as the ( 1996 ) Ford Bronco : ( Relay # 2 is the fuel pump relay )
What is the correct fuel pressure for a bronco?
if its a full size fuel injected bronco 87 or later the pressure should be between 35 and 42 psi
Where is fuel filter on 1988 bronco II?
Where is fuel filter on 1988 bronco II?" HOW TO CHANGE IT ---- It is located underneath the car, driver side area.
Where is fuel shut off switch for 1988 Ford Bronco Eddy Bauer?
where is fuel shut off switch for Ford Bronco eddy Bauer
